Piston 4F27E / J39a Direct 3-4 Clutch FNR5 Od Piston. 99-on. (oem# Fn11-19-3z0 / Xs4p-7h359-ab / Xs4z-7h359-ab)

Piston 4F27E / FNR5 Direct 3-4 Clutch OD Piston 1999-On | Various | ATK

Restore proper clutch engagement in your 4F27E or FNR5 automatic transmission with this Direct 3-4 Clutch OD Piston. Manufactured by ATK, this precision replacement piston fits 1999 and newer applications and cross-references OEM part numbers FN11-19-3Z0, XS4P-7H359-AB, and XS4Z-7H359-AB.

Key Features

• Direct replacement for the 3-4 clutch overdrive piston in 4F27E and FNR5 transmissions
• Precision manufactured by ATK for reliable sealing and clutch apply
• Cross-references OEM part numbers FN11-19-3Z0, XS4P-7H359-AB, and XS4Z-7H359-AB
• Ideal for rebuilds, clutch repairs, and restoration of shift quality
• Fits 1999 and newer transmissions for a wide range of compatible vehicles

Compatibility

This piston is compatible with 4F27E and FNR5 automatic transmissions from 1999 and newer across various vehicle brands. Please verify your transmission code and OEM part number before ordering.

Why Choose This Part?

ATK delivers dependable transmission components that meet or exceed OEM specifications, so your rebuild stays reliable mile after mile. Confirm your application and order this Direct 3-4 Clutch OD Piston today to get your 4F27E or FNR5 back on the road.